uvm_fault(fffffd806e957738,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd806e957738,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800023fb6e40,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800023fb6e40) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec6018,ffff800023fb7008,ffff800023fb7050) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023fb70d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023fb70d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xca854332330, count: 243 End of stack trace. Stopped at db_enter+0x18: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 yield() at yield+0x77 sys/kern/sched_bsd.c:304 pool_get(ffffffff826aba68,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd806e957738,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd806e957738,fffffd806b9f18c0,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd806e957738,fffffd806b9f18c0,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd806e957738,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd806e957738,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800023fb6e40,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800023fb6e40) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec6018,ffff800023fb7008,ffff800023fb7050) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023fb70d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023fb70d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xca854332330, count: -14 ddb{1}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800023fb68c0 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff80002318a000 rax 0xffff8000009d7700 r8 0xffffffff8212b2ff kprintf+0x16f r9 0x1 r10 0x2 r11 0x9a228c912c10e75e r12 0x1 r13 0xfffffd8068cf9e40 r14 0xffff800020ec6018 r15 0x3 rip 0xffffffff81cb79c8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800023fb68b0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=81565 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ec7ae8,0xffffffff826aa8a0 process=0xffff800020ed6bb8 user=0xffff800023fb2000, vmspace=0xfffffd806e957738 estcpu=36, cpticks=15, pctcpu=0.0 user=0, sys=15, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 99918 183352 45017 0 7 0 syz-executor.1 *99918 81565 45017 0 7 0x4000000 syz-executor.1 30361 232640 0 0 3 0x14280 nfsidl nfsio 90313 263496 0 0 3 0x14280 nfsidl nfsio 4600 213292 0 0 3 0x14280 nfsidl nfsio 8614 247146 0 0 3 0x14280 nfsidl nfsio 55838 448163 0 0 3 0x14280 nfsidl nfsio 16723 462815 0 0 3 0x14280 nfsidl nfsio 8225 512 0 0 3 0x14280 nfsidl nfsio 31355 254047 0 0 3 0x14280 nfsidl nfsio 43989 50774 0 0 3 0x14280 nfsidl nfsio 13773 204823 0 0 3 0x14280 nfsidl nfsio 85524 370245 0 0 3 0x14280 nfsidl nfsio 2243 228128 0 0 3 0x14280 nfsidl nfsio 75852 359715 0 0 3 0x14280 nfsidl nfsio 48154 133076 0 0 3 0x14280 nfsidl nfsio 71337 492418 0 0 3 0x14280 nfsidl nfsio 35050 141867 0 0 3 0x14280 nfsidl nfsio 89149 351786 0 0 3 0x14280 nfsidl nfsio 924 251926 0 0 3 0x14280 nfsidl nfsio 33494 433828 0 0 3 0x14280 nfsidl nfsio 29294 359108 0 0 3 0x14280 nfsidl nfsio 6569 20809 0 0 3 0x14200 bored sosplice 24395 19635 0 0 3 0x14200 acct acct 45017 111326 38097 0 3 0x82 nanosleep syz-executor.1 51076 129427 38097 0 3 0x2 biowait syz-executor.0 38097 342141 32363 0 3 0x82 thrsleep syz-fuzzer 38097 411594 32363 0 3 0x4000082 thrsleep syz-fuzzer 38097 123042 32363 0 3 0x4000082 thrsleep syz-fuzzer 38097 182991 32363 0 3 0x4000082 thrsleep syz-fuzzer 38097 229206 32363 0 3 0x4000082 thrsleep syz-fuzzer 38097 18684 32363 0 3 0x4000082 thrsleep syz-fuzzer 38097 312807 32363 0 3 0x4000082 thrsleep syz-fuzzer 38097 138247 32363 0 3 0x4000082 thrsleep syz-fuzzer 38097 87255 32363 0 3 0x4000082 kqread syz-fuzzer 38097 258929 32363 0 3 0x4000082 thrsleep syz-fuzzer 32363 174449 79712 0 3 0x10008a pause ksh 79712 469308 83956 0 3 0x92 select sshd 56500 11741 1 0 3 0x100083 ttyin getty 83956 4830 1 0 3 0x80 select sshd 39695 356004 56579 74 3 0x100092 bpf pflogd 56579 344724 1 0 3 0x80 netio pflogd 58046 336507 81008 73 3 0x100090 kqread syslogd 81008 469617 1 0 3 0x100082 netio syslogd 99064 481812 1 77 3 0x100090 poll dhclient 10836 201575 1 0 3 0x80 poll dhclient 17610 42622 0 0 3 0x14200 bored smr 40206 186102 0 0 3 0x14200 pgzero zerothread 65770 125871 0 0 3 0x14200 aiodoned aiodoned 5317 3154 0 0 3 0x14200 syncer update 72277 145886 0 0 3 0x14200 cleaner cleaner 18627 395710 0 0 3 0x14200 reaper reaper 22780 477671 0 0 3 0x14200 pgdaemon pagedaemon 61050 334849 0 0 3 0x14200 bored crynlk 33895 361429 0 0 3 0x14200 bored crypto 2179 520517 0 0 3 0x40014200 acpi0 acpi0 94570 73640 0 0 3 0x40014200 idle1 9067 105511 0 0 3 0x14200 bored softnet 25886 366663 0 0 3 0x14200 bored systqmp 19174 247470 0 0 3 0x14200 bored systq 39837 209340 0 0 3 0x40014200 bored softclock 65300 17778 0 0 3 0x40014200 idle0 1 456925 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 99918 (syz-executor.1) thread 0xffff800020ec6018 (81565) exclusive rwlock vmmaplk r = 0 (0xfffffd806e957750) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 vm_map_lock_ln+0x111 sys/uvm/uvm_map.c:5445 #3 uvmfault_lookup+0xbe sys/uvm/uvm_fault.c:1442 #4 uvm_fault+0xbbd uvmfault_amapcopy sys/uvm/uvm_fault.c:232 [inline] #4 uvm_fault+0xbbd sys/uvm/uvm_fault.c:559 #5 pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 #6 kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 #7 alltraps_kern_meltdown+0x7b #8 copyin+0x4b #9 sys_connect+0x9b sys/kern/uipc_syscalls.c:360 #10 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #11 Xsyscall+0x128 exclusive rwlock netlock r = 0 (0xffffffff82502378) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x5a sys/kern/uipc_socket2.c:282 #2 sys_connect+0x6a sys/kern/uipc_syscalls.c:355 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff826906e8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:93 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:570 #2 Xsyscall+0x128 Process 51076 (syz-executor.0) thread 0xffff800020e6c278 (129427) exclusive rrwlock inode r = 0 (0xfffffd806e41fd58) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vget+0x1c8 sys/kern/vfs_subr.c:671 #6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1329 #8 ufs_lookup+0x14b7 sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #11 namei+0x63c sys/kern/vfs_lookup.c:249 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b338918) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vget+0x1c8 sys/kern/vfs_subr.c:671 #6 cache_lookup+0x2bb sys/kern/vfs_cache.c:224 #7 ufs_lookup+0x1bc sys/ufs/ufs/ufs_lookup.c:162 #8 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #9 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #10 namei+0x63c sys/kern/vfs_lookup.c:249 #11 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #12 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #12 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #13 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9556 6428K 7442K 78643K 14128 0 pcb 13 8K 8K 78643K 147 0 rtable 80 3K 4K 78643K 366 0 ifaddr 106 19K 20K 78643K 188 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 71 0 ioctlops 0 0K 4K 78643K 1502 0 iov 0 0K 24K 78643K 611 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 2097 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 11 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 109 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 732 0 sigio 0 0K 0K 78643K 12 0 proc 61 63K 95K 78643K 538 0 subproc 32 2K 2K 78643K 36 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 70 0 in_multi 84 3K 4K 78643K 167 0 ether_multi 1 0K 0K 78643K 31 0 mrt 0 0K 0K 78643K 19 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 298 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 128 55K 71K 78643K 3414 0 UVM aobj 27 5K 5K 78643K 27 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 120 0 NDP 17 0K 0K 78643K 36 0 temp 149 3046K 3110K 78643K 14346 0 kqueue 3 4K 16K 78643K 46 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 53 0 51 1 0 1 1 0 8 0 rtentry 112 61 0 31 2 0 2 2 0 8 0 unpcb 120 445 0 435 1 0 1 1 0 8 0 syncache 264 10 0 10 5 5 0 1 0 8 0 tcpqe 32 109 0 109 3 3 0 1 0 8 0 tcpcb 544 254 0 248 1 0 1 1 0 8 0 inpcb 280 724 0 714 4 3 1 2 0 8 0 rttmr 72 7 0 7 4 4 0 1 0 8 0 nd6 48 10 0 6 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 2 0 1 0 8 0 ppxss 1128 2 0 2 2 2 0 1 0 8 0 pfstscr 40 3 0 2 2 1 1 1 0 8 0 pffrag 232 6 0 5 3 2 1 1 0 482 0 pffrnode 88 6 0 5 3 2 1 1 0 8 0 pffrent 40 57 0 56 3 2 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 80 0 30 1 0 1 1 0 8 0 pfstkey 112 80 0 30 2 0 2 2 0 8 0 pfstate 328 79 0 29 5 0 5 5 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 278 0 114 14 1 13 14 0 8 0 art_table 32 280 0 114 2 0 2 2 0 8 0 art_node 16 60 0 35 1 0 1 1 0 8 0 sysvmsgpl 40 50 0 38 1 0 1 1 0 8 0 semapl 112 107 0 97 1 0 1 1 0 8 0 shmpl 112 25 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2432 0 1029 90 2 88 89 0 8 0 ffsino 272 2432 0 1029 95 1 94 95 0 8 0 nchpl 144 3986 0 2375 60 0 60 60 0 8 0 uvmvnodes 72 3243 0 0 59 0 59 59 0 8 0 vnodes 208 3243 0 0 171 0 171 171 0 8 0 namei 1024 11169 0 11169 2 1 1 1 0 8 1 percpumem 16 46 0 14 1 0 1 1 0 8 0 vcpupl 1984 3 0 0 1 0 1 1 0 8 0 vmpool 560 9 0 6 1 0 1 1 0 8 0 scxspl 192 11075 0 11074 14 13 1 7 0 8 0 plimitpl 152 79 0 71 1 0 1 1 0 8 0 sigapl 424 969 0 916 8 1 7 7 0 8 0 futexpl 56 12519 0 12519 1 0 1 1 0 8 1 knotepl 112 120 0 101 1 0 1 1 0 8 0 kqueuepl 144 139 0 135 1 0 1 1 0 8 0 pipelkpl 48 167 0 157 1 0 1 1 0 8 0 pipepl 120 334 0 315 1 0 1 1 0 8 0 fdescpl 496 932 0 916 3 0 3 3 0 8 0 filepl 152 5985 0 5883 6 1 5 5 0 8 1 lockfpl 104 199 0 198 1 0 1 1 0 8 0 lockfspl 48 68 0 67 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 503 0 494 1 0 1 1 0 8 0 zombiepl 144 924 0 924 2 1 1 1 0 8 1 processpl 984 969 0 916 7 0 7 7 0 8 0 procpl 624 2594 0 2531 6 0 6 6 0 8 1 sosppl 128 9 0 9 2 2 0 1 0 8 0 sockpl 400 1230 0 1208 7 4 3 4 0 8 0 mcl64k 65536 19 0 0 3 0 3 3 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 8 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 10 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 190 0 0 23 0 23 23 0 8 0 mtagpl 80 357 0 0 8 0 8 8 0 8 0 mbufpl 256 1116 0 0 71 1 70 70 0 8 0 bufpl 280 4827 0 139 335 0 335 335 0 8 0 anonpl 16 120990 0 106219 80 16 64 77 0 124 0 amapchunkpl 152 6085 0 5955 26 19 7 19 0 158 0 amappl16 192 5561 0 4748 68 27 41 53 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 368 0 362 1 0 1 1 0 8 0 amappl13 168 31 0 27 1 0 1 1 0 8 0 amappl12 160 356 0 352 1 0 1 1 0 8 0 amappl11 152 54 0 39 1 0 1 1 0 8 0 amappl10 144 371 0 366 1 0 1 1 0 8 0 amappl9 136 383 0 382 1 0 1 1 0 8 0 amappl8 128 371 0 330 2 0 2 2 0 8 0 amappl7 120 474 0 460 1 0 1 1 0 8 0 amappl6 112 26 0 22 1 0 1 1 0 8 0 amappl5 104 842 0 824 1 0 1 1 0 8 0 amappl4 96 490 0 457 1 0 1 1 0 8 0 amappl3 88 130 0 125 1 0 1 1 0 8 0 amappl2 80 6905 0 6835 2 0 2 2 0 8 0 amappl1 72 29657 0 29220 23 12 11 18 0 8 0 amappl 80 2855 0 2812 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 64 26 0 0 1 0 1 1 0 8 0 uaddrrnd 24 941 0 922 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 941 0 922 1 0 1 1 0 8 0 vmmpekpl 168 10967 0 10933 2 0 2 2 0 8 0 vmmpepl 168 121901 0 119919 126 33 93 109 0 357 3 vmsppl 368 940 0 922 2 0 2 2 0 8 0 pdppl 4096 1890 0 1847 6 0 6 6 0 8 0 pvpl 32 335443 0 317417 188 38 150 185 0 265 0 pmappl 232 940 0 922 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 333 0 13 10 0 10 10 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82519ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff826904e0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff826904e0) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff8000229812d0,ffff800000658e00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:525 Xintr_ioapic_edge4_untramp() at Xintr_ioapic_edge4_untramp+0x19f __mp_lock(ffffffff826904e0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff826904e0) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff800022981420,ffff800000255c00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:525 Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x19f __mp_lock(ffffffff826904e0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff826904e0) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff800022981570,ffff80000006ba00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:525 Xintr_ioapic_edge17_untramp() at Xintr_ioapic_edge17_untramp+0x19f end of kernel end trace frame: 0x7f7ffffcbc30, count: -12 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 yield() at yield+0x77 sys/kern/sched_bsd.c:304 pool_get(ffffffff826aba68,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd806e957738,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd806e957738,fffffd806b9f18c0,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd806e957738,fffffd806b9f18c0,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd806e957738,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd806e957738,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800023fb6e40,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800023fb6e40) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec6018,ffff800023fb7008,ffff800023fb7050) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023fb70d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023fb70d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xca854332330, count: -14